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Digikey to me, in Europe delivered package in three days, dunno, they deliver it with superman!

There need to make some guidlines for new COB solutions. Like tell people to understand concept of efficiency not brightness and heat... How much space they have, how about height you can afford... And how much you are willing to invest?

fo sho, and great thing is, that this dude got supply in Europe, somewhere in Netherlands, maybe in USA too, so it helped me to avoid taxes, and price was already cheap... [URL=LINK']http://www.ebay.com/itm/131274527292_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT] LINK TO DRIVER [/URL]...

Gotta test these, chinese drivers out - 1500mA +/- 5% - 39V Damn, tested out those AB's - damn, just flipped them on for a second. Almost burnt my eye, then took sunglases, and closed my eyes when i were testing other cobs, and still - even with closed eyes cob tends to burn in my retina that...

Then run them with 5V or 7V with 2A

My pal is running V29, ~18-20cm @ 1.4a from tops, and everything is fine.

That 9lb hammer...

remeber, that LPV is 12V and you could stick more and more fans in future

No, LPV-100-48 is not suitable for you, because it is constant voltage. running on lower current: HLP-60H-42 (running 1.45A) Classic LPC-60-1400 I think this could be a good hit for you : HLG-80H-42 - it runs 25.2 - 42V @ 1.95A - so it's close, what you want... And maybe this: HLG-100H-42 or 48...

I'm so proud beeing part of this forum! And part of LED-movement. 4x - VERO29 - 3500k 80CRI 4x - CXA3070 AB's 3000k :)

Agreed with @JavaCo - they get split with each other and so don't vorry, each diode is not getting more than 36-38V

Naah man, i sold them, and i tool for myself CREE AB's... Those were 3500k :) Running with LPC-40-1400 and fans are controled by LPV-20-12 :)

Can i run this - http://www.ebay.com/itm/DC-12V-LED-Driver-Transformer-Constant-Voltage-6W-10W-18W-40W-For-LED-Strip-2014-/121439918711?pt=UK_Home_Garden_Lighting_Parts&var=&hash=item1c46621a77 18W __ So my plan is to run for first two fans at 12V, so 0.4A, so i have still left 1A for future...

i just gave my pal my recently ordered veros29, he threw 4x on 4x4 (approx i think), he says - damn much brighter than his 600w HPS, and really believes in it :) Running at 1.4amps...

55 COBS! DAMN SON!

I think no need to flush, wait more, like week or two, then only flush, and i think now is the right time to give any bud boosters,, mollases, a dose of PK-13-14...

Then it seems, with 36v with 1.4A is no-no...

So Driver selection voltages - 33.9 min hot, Vf. Just 36V are much cheaper and PFC, than 39V, i'm just making order soon, really need to know asap.

I have lurked them all the way... Thanks for trying to explain this for me, haha. Yes, i will have single V29 and 36V driver, wich puts out 1500mA, chinese driver... F**k it, i will just take all chinese 39V ^_^

Ohh... ok! then buying 36V driver @ 1400/1500mA would be fine...